Cultivator with weeder attachment



Oct. 7, 1952 F. B. WALKER 2,612,325

CULTIVATOR WITH WEEDER ATTACHMENT .Filed Dec. so, 1947 s sheets-sheet 1 Inventor T Floyd B. Walker 0a. 7, 1952 F. B. WALKER CULTIVATOR" WITH WEEDER ATTACHMENT 3 Sheets-Sheet 2 Filed Dec. 30, 1947 Inventor Floyd B.- Walkef Oct. 7, 1952 F. a. WALKER CULTIVATOR WITH WEEDER ATTACHMENT 3 Sheets-Sheet Filed Dec. 30, 1947 Floyd B. Walker INVENTOR.

Patented Oct. 7, 1952 UNITED STATES PATENT OFFICE CULTIVATOR WITH WEEDER ATTACHMENT Floyd. B. Walker, Mountain Park, Okla. Application December 30, 1947, Serial No..794,511 11 Claims. (01.. 97-8) 1 This Invention apertains to novel and useful improvements in attachments for tractors or the like, adapted to be utilized in association with the cultivation of land. Y

An object of this invention is to provide means for ready attachment anddetachment to a tractor, whereby top soil maybe cultivated and at the same time a weeding or harrowing operation which pulverizes, or individualizes, the uppermost part of the soil, thereby killing small:

positions.

A further object of this invention is to provide means for resiliently transmitting force from a rod to the said support in the raising and lowering operations.

Another purpose of this invention is to provide improved means for attaching the said support to'the said frame, whereby the removal of a few pins eflicaciously detaches the said support.

Another purpose of this invention is to provide an extremely simplified device of the character described which performs its intended operation efliciently.

Other objects and features of novelty will become apparent to those skilled in the art, in following the description of the preferred form'of the invention, illustrated in the accompanying-- drawings, wherein Figure 1 is an elevational side view of the preferredform of the invention;

Figure 2 is a plan view of the invention shown in Fig. 1, portions.v of the cultivating elements being removed for clarity;

Figure 3 is a perspective view of the support utilized in association with the invention and forming a portion thereof Figure .4 is a sectional view of the invention shown. in Fig. 1 and taken substantially on the lined-4 thereof and in the direction of the arrows, and;

Figure 5 is a fragmentary sectional view taken substantially on the line 5-5 of Fig. 1 and in the directionof thearrows.

This invention has been. conceived and developed to provide a device for combining certain:

agricultural operations on. land. It may be utilized in association with any type of conventional tractor having the usual drawbar associatedtherewith. The present invention consists primarily of a frame and a support having ,eultl-,

vator means associated with, eachof said members and means for selectively raising and lower.- ing: the support relative to the frame. The said frame is adapted to be secured to a drawbar which.

inherently is adjustable (due to the usual mechanism in: a. tractor), thereby eiiecting further possible adjustment of the invention.

It is preferable that weeder type of: blades (or. teeth) be used in association with the said sup-- port and cultivator blades be utilized. in association with the said frame. the device may be used to cultivate and in the same operation weed (or harrow) the land in preparation of a seed bed. An even, firm seed bed results from the use of the invention in this manner, thus eliminating the expense and time of harrowing the ground after plowing, as is commonly done at the present time.

Of course, the device maybe used in association with the cultivation and weeding of land having The position of theblades is important in that they may straddle a growing crop thereon.

rows of crops thereby killing weeds adjacent the said growing crops.

As'the. soil is pulverized next to the growing crop, itis permitted to lie more closely together," which seals it and causes it to hold a considerable amount of moisture which would otherwise evaporate. Cultivators normally dig up the soil thereby permitting sun and a quantity-of air tocontact the same thereby aiding evaporation,

however, when the instrument of inventionis utilized in association with the cultivator, the

other environments, the same may be done;

Another example is in association with grain drills, where light weeding is necessary in sowing grass seeds, alfalfa, clover and therlike. -The By this construction:

Y 3 seed of this type of flora should be covered over slightly in a well pulverized firm seed bed. The utility of the present invention provides such means.

It will be noted that the present invention is supplied in two sections which are attached and detached by removal of three conventional pivot pins. The time and effort involved in this attaching and detaching operation isthen readily obvious,,since this operation may be performed in approximately one minute.

Correlating Figures 1 and 2, it will be seen that there are several structural members composed of various metallic elements, preferably angle iron or the like. A substantially rectangular frame is generally indicated at It! and has a plurality of cultivator blades. l2 securedthereto through the medium of arms [4. A structural element is supplied on the said frame [6 and is indicated at E 6. This structural element or truss is composed of four convergent arms I8 having the ends thereof secured to suitable perches 20 by means of pivot pins 22. The upper or convergent points of: the said legs I8 (in the truss l6) are connected by means of a pivot pin 24.

A pair of connecting links 26 and 28 respectively, are secured to the said pivot pins 22 and are adapted to communicate andoperatively connect with a conventional tractor drawbar. A supporting member 30 may be used in association'with each of thesaid connecting links if so desired.

A substantially rectangular support,generally indicated at 32, is used in association with the frame In and is detachably connected therewith. This support is also composed of any suitable material, preferably, angle iron and has a longitudinal-cross member 34 secured thereto. Conventional rake blades 36 are secured tothe cross members of the support in a conventional manner, as indicated by the clips 38 (see Fig. 1). These clips are, of. course, apertured and secured to a suitable nut and bolt (or the like), with a portion of the resilient neck of the said rake blades extending through the slot.

- A plurality of rods 40 are secured to the said support 32 through the medium of a bolt and nut construction. These rods 43 are convergent and are again connected by a suitable bolt 42 at the convergent point.

Reviewing now Figure 3, it will be seen that the support 32is supplied with an extension frame of substantially U-shaped configuration, as seen at 44. The extremities of the legs of the said U- shaped extension are secured to the lowermost portion of the rods 40, pertinent thereto, and a pair of brackets 46 and 48 respectively, are pivotallysecured to the said extension M. These brackets in turn have plates 50 and 52, respectively, secured thereto, which are in turn connected with the said frame l through the medium ofrivts, bolts, or the like. This extension element 44 is detachable along with the support 32 by means of the removal of a pair of pins 54 and 56 respectively, which retain the said brackets 46 to the said extension.

The said brackets are formed with apertures opposite the pin-receiving apertures and another pair of suitable pivot pins are provided therethrough. These last mentioned pivot pins are however, connected with .therear pair of truss legs. [8.

Also secured to the said pivot pins 54 and 55, respectively, is a yoke 58. This yoke terminates at a convergent point-at substantially. thesame 4 level or height as the truss l6 and the plurality of rods assembled on the said support 32. A pair of connecting links 60 and 62, respectively, are positioned between the convergent portions of the said yoke 58 and the said plurality of rods 40. Conventional pivot pins 64 and 66, respectively, may be utilized for this pivotal connection. Of course, since these rods are pivoted at both ends they may be considered pitman rods. A bracket or perch 68 is secured to these rods 60 and 62, respectively, and a spacer 70 extends thereacross. Also secured to the said bracket 68 is a suitable spring 12, which has the opposite end connected with an actuating arm 14. This actuating arm is pivoted on the said pivot pin 64 and has an extended portion thereof which is adapted to protrude a predetermined amount. This amount is dictated by the size of the implement and by a method to determine the most convenient position for actuation thereof. It maybe seen that upon pivoting. the said rod 14 about the pins as an axis, the support, 32 is selectively raised or. lowered relative to the frame If) through the medium of the resilient element or spring '12, being seated on the perch or bracket 88. Connected to the pivot pin 64 and to the upper or convergent portion of the truss I6 is another link 76 having a rack gear segment or portion of a quadrant "18 secured thereto. Supplied on the said arm or rod 14 is a keeper 60 having an actuating rod 82 secured thereto. This keeper, of course, engages a selected tooth of the gear segment and retains the support 32 in the selected, elevated or raised position. A suitable spring handle 84 may be supplied at the terminal portion of the said actuating rod 82 for further latching purposes. It is readily apparent that the rod 16 may be extended for further attachment to a tractor and also, suitable members of the truss I6 may be extended and pivoted elements 88 secured thereto which in turn may be connected with the towing tractor for additional support.

It is noted at this point. that for removal of the support from the said frame, the pin 90 used for connecting the truss to the link 76 need only be removed and also the pins 56 and 54, respectively. By this means the support and frame become disconnected for separate use. 92 and 94, respectively, extend through the selected legs 40 of the plurality of legs on the said support 32 and when it is desirable, thesepins may connect in theapertures provided in the elements 26 and 28, respectively, which in turn connect to the conventional tractor drawban Thus, the support 32 and its pertinent elements may be connected directly to a tractor.

While it has been described and illustrated but a preferred form of the invention, it is apparent that variations may be made without departing from the spirit thereof.

Having described the invention, as new is: v

1. A farm implement comprising a Irame'having cultivator blades secured thereto, means for attaching said frame to a tractor, a support having ground cultivating elements thereon, means for detachably securing said support .to said frame, said framehaving a yoke associated therewith, a plurality. of rods secured to said support,

and means secured to said rods and detachably secured to said yoke for raising and lowering said support. a 2.- A farm implement comprising a framehaving cultivator blades secured .thereto',.means.for;

The pins what is claimed attaching said frame to a'tractoridrawbar, a support having ground cultivating elements thereon,

means for detachably securing said support to.

said frame, said frame having a yoke associated therewith, a plurality of convergent rods secured to said support, means secured ,to said convergent rods and detachably secured to said yoke for raising and lowering said support, and means for releasably locking said support in a raised position.

3. A farm implement comprising a frame having cultivator blades secured thereto, means for attaching said frame to a tractor, a support having ground cultivating elements thereon, means for detachably securing said support to said frame, said frame having a yoke associated therewith, at least one upwardly extending rod secured to said support, means secured to said rod and detachably secured to said yoke for raising and lowering said support, a link secured to said yoke and said rod, a bracket secured to said link, said raising and lowering means including an arm pivoted to said yoke, and resilient means connecting said arm to said bracket.

4. A farm implement comprising a frame having cultivator blades secured thereto, means for attaching said frame to a tractor drawbar, a support having ground cultivating elements thereon, means for detachably securing said support to said frame, said frame having a yoke associated therewith, a plurality of convergent rods secured to said support, means secured to said convergent rods and detachably secured to said yoke for rais-, ing and lowering said support, means for releasably locking said support in a raised position, a link secured to said yoke and said rods, a bracket positioned on said link, said rasing and lowering means including an arm pivoted to said yoke, and a spring resiliently connecting said arm to said bracket.

5. In a farm implement, a frame, cultivator blades secured to said frame, a truss secured to said frame, a support, means for detachably securing said support to said frame, convergent rods on said support, a yoke operatively connected with said frame, a pitman connecting said convergent rods and said yoke, a pitman connecting said yoke and said truss, cultivator elements secured to said support, and means operatively connected with said yoke and the first mentioned pitman for raising and lowering said support relative to said frame.

6. In a farm implement, a frame, cultivator blades secured to said frame, a truss secured to said frame, a support, means detachably and piv-, otally securing said support to said frame, upwardly extending rods on said support, a yoke operatively connected with said frame, a pitman connecting said rods and said yoke, a pitman connecting said yoke and said truss, cultivator elements secured to said support, and means operatively connected with said yoke and the first mentioned pitman for raising and lowering said support relative to said frame.

'7. In a farm implement, a frame, cultivator blades secured to said frame, a truss secured to said frame, a support, means for detachably securing said support to said frame, convergent rods on said support, a yoke operatively connected with said frame, a pitman connecting said convergent rods and said yoke, a pitman connecting said yoke and said truss, cultivator elements secured to said support, means operatively connected with said yoke and said first mentioned pitman for raising and lowering said support relative to said frame, and. means? for releasablyf.

lockingvsaid support ima ralsedpositiomx;

8. In" a frame iimplem'ent,= a frame, acu'ltivator I blades S801l1ed'lt0 said frame, a truss secured to said frame, asuppOrumeans'for detachably :securing" said. support .to said.:iframe, convergent.

rods'on saidsupport a' yoke operativelyaconnected with said frame; a pitman connecting said} convergent rods and-said; yoke, a -:pitman 'con"-.- necting said yoke-and said truss, cultivator ele-n ments secured-tosaid support; means fol-raising and lowering'said support relative-tosaid frama g means for releasably lockingsaidi support-in" raised position, said raising and lowering imeanss; including. an armpivotally associated with said and lowering said support relative to said frame,

means for releasably locking said support in a raised position, said detachable securing means including an extension on said support and a plurality of pivot pins interconnecting said extension and said frame.

10. In a farm implement, a frame adapted to support cultivator elements, a truss secured to said frame, a support also adapted to support cultivator elements, an extension operatively connected with said support and links secured to said frame and said extension thereby pivotally connecting said support with said frame, pivot pins connecting said links with said extension and said frame, an upstanding yoke pivotally secured to said extension and a pitman connecting said truss with said yoke, upstanding rods support and a pitman connecting at least certain of said upstanding rods with said yoke, a bracket fixed to said last mentioned pitman and having a spring secured thereto, an arm pivotally carried by said yoke and having said spring secured thereto whereby said spring opposes the pivotal operation of said arm and whereby the pivotal movement of said arm is transmitted through said spring to said support, a locking device operatively connected with said arm to hold said arm in selected ones of a number of positions so that said spring may be employed to resiliently urge said support downwardly.

11. In a farm implement, a frame adapted to support cultivator elements, a truss secured to said frame, a support also adapted to support cultivator elements, an extension operatively connected with said support and links secured to said frame and said extension thereby pivotally connecting said support with said frame, pivot pins connecting said links with said extension and said frame, an upstanding yoke pivotally secured to said extension and a pitman connecting said truss with said yoke, upstanding rods which are vertically convergent, attached to said support and a pitman connecting at least certain of said.

upstanding rods with said yoke, a bracket fixed to said last mentioned pitman and having a spring secured thereto, an arm pivotally carried by said yoke and having said spring secured thereto whereby said spring opposes the pivotal operationof said arm and whereby the pivotal movement of said arm is transmitted through said sprin to said support, a locking device operatively connected with said arm to hold said arm in selected ones of a number of positions so that said spring may be employed to resiliently urge said support downwardly, and a stop secured to said second mentioned pitman engaged by said arm when said arm is pivoted in one direction so that the pivotal movement of said arm in the said one direction is transferred to lifting movement of said support.

.. FLOYD B. WALKER.

8 REFERENCES CITED UNITED STATES PATENTS Number Name Date 1,116,914 Peterson et a1 Nov. 10, 1914 2,336,410 McKay Dec. 7, 1943 FOREIGN PATENTS Number Country Date Great Britain Oct. 26, 1943 

